Pipe joint



L. S. HAMER Oct. 9, 1951 PIPE JOINT 2 Shets-Sheet 1 Filed Oct. 16, 1946 lNl/ENTO W'. M 5% ,QTTOBNEV Patented Oct. 9, 1951 PIPE JOINT Leland S. Hamel, Long Beach, Calif., assignor of one-fourth Calif.

to Paul A. Dewhirst, Los Angeles,

Application October 16, 1946, Serial No. 703,511 6 Claims. (01. 285-130) This invention relates to a pipe line blinding fitting and it is a general object of the invention to provide an efficient, effective and improved fitting of this character.

It is a general object of the present invention to provide a line blinding fitting involving two telescoping sections and an improved, simple and practical means operable to connect the sections and to actuate them relative to each other to clamp a blinding plate in place or to release the plate for removal. With the construction of the present invention the relatively movable telescoping sections can be easily and conveniently operated so that they effectively clamp the blinding plate in operating position and they can likewise be easily and conveniently operated to release or free a blinding plate after it has been inservice.

Another object of the present invention is to provide a fitting of the general character referred to which involves few simple easily formed parts, making the structure practical and inexpensive of manufacture.

It is a further object of the invention to provide a pipe line fitting of the character referred to which is simple and compact so that it takes up a minimum of space lengthwise of the pipe line and also projects a minimum amount laterally of the pipe line. The device of the present invention being compact both axially and laterally is suitable for use in many situations where ordinary blinding devices cannot be used since vices, and it involves, generally, two flow con= ducting sections, an outer section X and an inner section Y, sealing means C between the sections, a plate A to be carried by or between the sections and coupling means joining or connecting the sections X and Y and operable to shift them axially relative to each other. The coupling means involves a plurality of like circumferentially spaced threaded connections B.

The sections X and Y of the fitting are tubular parts arranged coaxially and together forming a fluid conduit for conducting flow from one pipe section to another. The outer section X ineludes, generally, a tubular body In, coupling there are many situations where space is limited and does not permit the use of cumbersome or complicated devices,

The various objects and features of my invention'may be fully understood from the following detailed description of a typical preferred form and application of the invention, throughout which description reference is made to the accompanying drawings, in which:

. Fig. 1 is a side elevation of the fitting provided by .the present invention showing a blinding plate in position therein. Fig. 2 is and end view of the structure that I have provided being a sectional view taken as indicated by line 2-2 on Fig. 1. Fig. 3 is a detailed plan section taken as indicated by line 3-3 on Fig. 1. Fig. 4 is an enlarged longitudinal sectional view of the structure, being a view taken as indicated by line 4-4 on Fig. 2, and Fig. 5 is a transverse sectional view taken as indicated by line 5-5 on Fig. 4.

. The fitting of the present invention is intended primarily for use in pipe lines or in connectionwith manifolds or other like parts or demeans I I at the outer end of the body for making connection with a pipe or the like, and a plate carrier 12 at the inner end of the body accommodating the plate A and receiving the inner end of section Y. The means Il may be varied depending upon the type of connection to be employed in joining the fitting to a pipe or the like. In the drawings I have shown the means I l as a simple flange formed integrally on the body l0 so that a pipe can be connected to the section X through a simple bolted flange connection.

The plate carrier is located at the inner end portion of the body I!) and is preferably an enlargement formed integrally with the body and in the nature of a bearing. The plate carrier is formed to establish a chamber in the section X for the reception of the plate A and it has a laterally extending access opening I3 through which the desired plate portion or plate end can be passed to and from the chamber. In the preferred form of the invention the plate carrier I2 is curved and is concentric with the body l0. except at the top or upper side of the fitting where it has a vertically extending portion I4 through which the passage I3 extends. By thus: forming the plate carrier fiuid standing in the fitting will not spill or be allowed to escape there from when the fitting is operated in the course of introducing or removing a plate. A suitable drain opening I5 is provided in the bottom of the plate carrier and is normally closed by a suitable plug It.

The wall I! of the plate carrier, which is formed integral with the body In and may be considered a part thereof, has a seat l8 formed thereon in the chamber that receives the plate A, which seat is annular in form and surrounds the flow passage l9 extending through the section X and is disposed in a plane normal to the axis .of the fitting. Th flowpassage 19 through the fitting The inner section Y involves a simple tubular body portion 2|, coupling mean 22 at the outer end of the body l0, and a plate clamping-porn tion 23 at its inner end. The means 22, =like' the 1:

provided on the outer end of body 2 I. The flange of means 22 is shown as a part formed separate from the body 2| and is suitably joined thereto. I have shown two means joining the .body' -and flange, one threads at 25; and th other weldin at 24. It will be understood that eitherronenor. both of these means may be employed as circum: stances require,

The" clamp portion, 23 provided .at.the inner. end oflthe. body; 21; is .preierablyvintegral with the. body and, as shown the drawings, it may be a simple enlargement on the inner end of. the body finished .to/have a seatfifi opposingrthewseat ('8 and a turnedexterior.ZI-fittingthe bore 28.

The platelA may beranyl suitable linesblinding or fiow controlling plate. In the drawingsI. have shown the plate A as. a double ended platein which case ithas a solid end30-insertable in the. chamber of the carrier 12 tolfit between the seats l8 and 26, andit has an.:apertured.end 3L'which may be arranged in the chamber be.- tween the seats I81 and 26. "In practice it is de: sirable :to provide a seal between a plate portion or section engaged-between the seatsof -the seetionsX and Y, In the drawings-I have shown sealing ringse33 =mounted inropposite sides ofthe plate ends to engageand seal with the seats-ofthebody sections.

The sealing means C acting betweenthesections X and Y to prevent leakage from between th sections preferably includes a sealing ring lflcarried in one section to engage andseal with the other Section. In the drawings the ring is shown carried in a channel or grooved! provided in the bore 20' so that the packing ring 40 engages and seals with the finished exterior 21 of the clamp portion 23.-

The threaded connections B which are'preferably alike may be varied in number and spacing, although it is preferred and has been foundpractical to employ four such connections and to space them 90 apart around the anis of" the fitting, as clearly shown in Fig. 2 of thedrawings. Each threaded connection B involves a threaded stud 5ilprojecting axially from .one section of the fitting, preferably the outer section X, a sleeve SI threaded onto the stud, a mounting bracket 52 on-the other section of the fitting and holding the-sleeve, a head 53 on the outer end of the sleeve, a collar 54 on the inner end of. thesleeye, thrust washers Si-adjacent the head and collar andmeans 5.8 for lubricating the working parts.

- The stud 5.9 is .carriedcby section X to project axially therefrom in thedirection .of sect-ion H and in accordance with my present construction, the stud proiects from the .outer side of wallbzil fthe'. plate carrier l2. r. .ThewvallL-Zfl 10f the .iplate 4 carrier is suitably enlarged at Ell where the stud is located and the enlargement 60 has a tapped opening 6| into which the inner end portion 62 of the stud is tightly threaded. I may provide the stud with a flange 63 to be seated against the outer face of enlargement 60.

The sleeve 5| has a running fit on the threaded outer end portion fi l of thestudandit has an unthreaded extension 65 atitsinner end freely surrounding the stud.

The mounting bracket 52 is a projection extending laterally from the body 2| of section Y at'a point intermediate the ends of the body and, a showninthe dra wings, it may be an integral projection orlug on the body braced or stifiened by a suitable web 10. In accordance with my invention the bracket-52 has a bore or passage H formed therethrough concentric with the stud 5iixandfre'ely passing the sleeve 5|.

The head 53 is in the nature of an enlargement or; the-eater. seei g thee 5i and elpsest t e headis o med Withaplurality orf- -.0penings-l4 u able 10. th recepti n :oiibar i or:the;1ike,..;

The co lar-54 fits-around theinner-end po t n or. xtension 5 oithe, sle t/fie .5! on whichnpartiit is held orrretained bya retainer ring 15-. The re: tainer-ring may be, a simple,v snap ring, asilluse,

trated inrFigr 5 of theldrawings. The. collar v54 has an end or, shoulder: l 6. facing theinnerside of thermounting bracket 52;

The thrust washers. 5.51am carriedon or surround the sleeve 5 I -.and-,are-arranged-between the shoulder 72 and the outer side of bracket- S'land the. shoulder 16 and the inner side of bracket-52 and serve as bearing members between- 'these parts. a I

The means provided for lubricating the working parts may involve a suitable'greas con nection Sil'carried by the head itin commu-nication with a'port 82 communicating witha chainber 83 formedcwithin the sleeve. 5 I between the end of the-stud 5G and-the-head 53. Lubrieant'introducedinto the chamber-J33 /efiectively-lubricates the threadedconnection betweenthe sleeve and thefstud. A-lateral ports 84 extends from thechamberv BSLthroughthes-leeve 5i to-the space between the sleeve-and bore" PM Iinthebracket so that lubricant fromschainber 8-3 is admitted between Lthersleeye and the bracket-to reach the thrust washers 55. In practiceI-provide-a sealingring #88 betweenflthe. stud and the extension of thesleeve to prevent escape of lubricant-from between thes stud andsleeve. A I In employingithe device. tor" .the present invention the sections Y-Xand Y- are attached-or secured to pipe sections or thevlike through the-nieans -H and 2 2.. The desired plateend is introducedi'nto the chambergof the plate. carrier L2 .and the threaded connections B are operated so that the sectionYis forced toward the sectio n X with the result that the clamp. portion 23 of the section Y clamps. the plate against the seat {8 the plate carrier of section It will beapparent that by. suitably lop'erating the connections B the plateris made tightin thefitting and-if-the plate endii solid, as showntin Fig. f-fiow -is-positive1y cutofi whereas if an apertured plate endis ernployed flow is allowed to. occur throughthe fitting. In eitherevent the sealing .means between the plate end -and fitting sections prevents leaksage from the fitting. When it is desired to remove the plate either to install a new or different plate or to change the plate end for end the connections B are operated to move the sections X and Y apart, with the result that the clamp portion 23 of section X moves away from the plate, freeing it so that it can be readily withdrawn from the plate carrier.

Having described only a typical preferred form and application of my invention, I do not wish to be limited or restricted to the specific detailsherein set forth, but wish to reserve to myself any variations or modifications that may appear to those skilled in the art and fall within the scope of the following claims.

Having described my invention, I claim:

1. A structure coupling two relatively movable tubular sections including a plurality of circumferentially spaced connections between the sections operable to move the sect ons together or apart and each including a stud fixed to one section and projecting longitudinally of the sections and toward the other section, a lug projecting laterally from the other section and having a plain bore therethrough coaxial with the stud, a sleeve extending through the bore and threaded on the stud, the sleeve being freely rotatable in the bore, a head on one end of the sleeve at one side of the lug, and a collar on the other end of the sleeve at the other side of the lug.

2. A structure coupling two relatively movable tubular sections including a plurality of circumferentially spaced connections between the sections operable to move the sections together or apart and each including a stud fixed to one section and projecting longitudinally of the sections toward the other section, a lug projecting laterally from the other section and having a bore therethrough coaxial with the stud, a sleeve extending through the bore and threaded on the stud, a head on one end of the sleeve at one side of the lug, a collar on the other end of the sleeve at the other side of the lug, and thrust washers between the head and lug and between the collar and lug.

3. A structure coupling two relatively movable tubular sections including a plurality of circumferentially spaced connections between the sections operable to move the sections together or apart and each including a stud fixed to one section and projecting longitudinally of the sections toward the other section, a lug projecting laterally from the other section and having a bore therethrough coaxial with the stud, a sleeve extending through the bore and threaded on the stud, a head on one end of the sleeve at one side of the lug, a collar on the other end of the sleeve at the other side of the lug, and a snap ring retaining the collar on the sleeve.

4. A structure coupling two relatively movable tubular sections including a plurality of circumferentially spaced connections between the sections operable to move the sections together or apart and each including a stud fixed to one section and projecting longitudinally of the fitting toward the other section, a lug projecting laterally fromthe other section and having a bore therethrough coaxial with the stud, a sleeve extending through the bore and threaded on the stud, a head closing one end of the sleeve at one side of the lug, a collar on the other end of the sleeve at the other side of the lug, and means for introducing lubricant into the sleeve between the head and the end of the stud.

5. A structure coupling two relatively movable tubular sections including a plurality of circumferentially spaced connections between the sections operable to move the sections together or apart and each including, a stud fixed to one section and projecting longitudinally of the fitting toward the other section, a lug projecting laterally from the other section and having a bore therethrough coaxial with the stud, a sleeve extending through the bore and threaded on the stud, a head on one end of the sleeve at one side of the lug, a collar on the other end of the sleeve at the other side of the lug, thrust washers between the head and lug and between the collar and lug, and means for introducing lubricant into the sleeve between the head and the end of the stud and to the washers.

6. A connection coupling two relatively movable tubular sections including, a stud fixed to one section and projecting longitudinally of the sections and toward the other section, a lug projecting laterally from said other section and having a plain bore therethrough coaxial with the stud, a sleeve extending through the bore and threaded on the stud and being freely rotatable in the bore, and two elements on the sleeve at opposite sides of the lug, one of the elements being fixed on the sleeve and the other being detachable therefrom, one of said elements being a collar at one side of the lug and the other being a tool receiving head at the opposite side of the lug.

LELAND S. HAMER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,889,133 Pfefferle Nov. 29, 1932 1,980,451 Taylor Nov. 13, 1934 2,339,970 Young Jan. 25, 1944 2,386,893 Hamer Oct. 16, 1945 2,425,934 Hamer Aug. 19, 1947 

